When working in a project that combines tracking behaviors and retiming operations, use the following guidelines for more successful results:
Because the Motion tracker analyzes in a project’s frame rate, ensure that the frame rate of the footage you plan to track matches the frame rate of your project. For example, to track 24 frames-per-second (fps) footage, your project’s frame rate should be 24 fps. When the tracking analysis is completed, retime the clip using the Retiming parameters in the Media list or by using the Retiming behaviors.
Do not retime the footage before the tracking analysis.
Do not retime the footage, perform a tracking analysis, then retime the footage again. This may adversely affect your tracking analysis.
Note: To track the motion of a clip after it’s retimed, export the retimed clip, then import it back into your project before you perform the tracking analysis.